Pith Number

pith:LXSLJ2QD

pith:2013:LXSLJ2QDYOALHFIHR5FHNJTX3F

not attested not anchored not stored refs pending

Line Emission from Radiation-Pressurized HII Regions I: Internal Structure and Line Ratios

Alexander G. G. M. Tielens (Leiden), Christopher D. Matzner (U of Toronto), Mark R. Krumholz (UCSC), Sherry C. C. Yeh (U of Toronto), Silvia Verdolini (Leiden)

arxiv:1303.4742 v1 · 2013-03-19 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LXSLJ2QDYOALHFIHR5FHNJTX3F}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:51:00.566329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5de4b4ea03c380b395078f4a76a677d96e41f4ed8baf94dd2dbce37735724631

Aliases

arxiv: 1303.4742 · arxiv_version: 1303.4742v1 · doi: 10.48550/arxiv.1303.4742 · pith_short_12: LXSLJ2QDYOAL · pith_short_16: LXSLJ2QDYOALHFIH · pith_short_8: LXSLJ2QD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LXSLJ2QDYOALHFIHR5FHNJTX3F \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5de4b4ea03c380b395078f4a76a677d96e41f4ed8baf94dd2dbce37735724631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17534b44e168620a24bd139b2bc61da427ceed0a21035a6761b12dc7b384fce2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-19T20:00:06Z",
    "title_canon_sha256": "f9fe61ec76d9a09c4584dccf2307d3e08ca7d4b57b06fdad4bc9e4200bf6dae0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4742",
    "kind": "arxiv",
    "version": 1
  }
}